Hendrickson Motor Truck Company in Chicago.

In 1913, Magnus Hendrickson founded the Hendrickson Motor Truck Company in Chicago. Quite an innovator in his day, Hendrickson began building custom trucks including those for specialized applications such as heavy delivery, stone cranes, roofer’s hoists and scavenger bodies.

It was Hendrickson that developed and marketed the first tandem axle suspension, and was one of the first truck manufacturers to install Diesel engines. The company built its first line of fire apparatus in the 1930s, and was the first to develop and market the first tilt cab custom pumper chassis in the 1980s http://www.hmetruck.com/